204 The North American Cup-Fungi 



On the ground. 



Type locality: France. 



Distribution: Wisconsin; also in Europe. 



4. Paxina leucomelas (Pers.) Kuntze, Rev. Gen. PI. 2: 864. 



1891. 



Peziza leucomelas Pers. Myc. Eu. 1: 219. 1822. 

 Aleuria leucomelas Gill. Champ. Fr. Discom. 37. 1879. 

 Acetabula leucomelas Boud. Hist. Class. Discom. Eu. 40. 1907. 



Apothecia gregarious or scattered, rather deep cup-shaped, 

 reaching a diameter of 2-3 cm. and a depth of 2 cm. or occa- 

 sionally expanded and more shallow, externally whitish or 

 cinereous and rather conspicuously tomentose; hymenium darker 

 than the outside of the apothecium, brownish-black; stem short 

 and thick, not usually exceeding 1 cm. in length and 5-8 mm. 

 thick, deeply lacunose, the ribs extending to the base of the 

 apothecium; tomentum consisting of fascicles of hyaline hairs 

 which are made up of rather loosely united and strongly swollen 

 cells; asci cylindric above tapering below; spores ellipsoid, 

 smooth, each containing one large oil-drop which nearly fills 

 the spore, 12-13 X 21-23 m; paraphyses straight, enlarged above, 

 reaching a diameter of 5-6 ix. 



On the ground. 



Type locality : Europe. 



Distribution: Wisconsin to California; also in Europe. 



Illustrations: Pers. Myc. Eu. pi. 30, f. 1; Gill. Champ. 

 Fr. Discom. pi. 32, f. 2; Cooke, Mycographia pi. 47 , f. 186; 

 Boud. Ic. Myc. pi. 249; Bull. Soc. Myc. Fr. 3: pi. 5,f. 2. 



5. Paxina sulcata (Pers.) Kuntze, Rev. Gen. PI. 2: 864. 1891. 



(Plate 24, fig. 2.) 



Peziza sulcata Pers. Syn. Fung. 643. 1801. 

 Acetabula sulcata Fuckel, Symb. Myc. 330. 1869. 

 Acetabula Calyx Sacc. Myc. Yen. 168. 1873. 



Apothecia gregarious or scattered, shallow cup-shaped or 

 occasionally expanded or nearly plane, reaching a diameter of 

 2-3 cm. and a depth of 1-1.5 cm., externally minutely rough, 

 the roughenings consisting of poorly developed hairs, the color 

 varying from cinereous to brown ; the hymenium darker than the 

 outside of the apothecium, brownish-black; stem usually short, 

 seldom exceeding a length of 1 cm. or rarely 2 cm., deeply 

 lacunose, paler than the outside of the apothecium, whitish to 



